HIP: WMMA-MMQ kernels for RDNA 4 (llama/17156)

HIP: WMMA-MMQ kernels for RDNA 4 (llama/17156)

* first commit naive test to enable mmq for RDNA4

* adding appropriate WMMA instructions

* git rebase on top of master: fixing the correctness of the mat mul operations, updating layout mappings for RDNA4

* clean up merge conflicts

* add comments and code clean up

* PR clean up, addressed comments

* enable MMQ fallback on RDNA4

* addressed comments: add guards in load generic, separate wmma branch for use_mmq function

* Revert build-xcframework.sh

* Formating: remove trailing whitespace

* revert CMake files

* clean up after rebase: remove duplicated change, revert cmake files

* clean up after rebase: revert changes from build-xcframework.sh

* clean up: remove extra space line in mma.cuh

* Revert "clean up: remove extra space line in mma.cuh"

This reverts commit b39ed57c4529906466bd0bc7c2a86e08fc2f8bee.